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PurpleAndBlue
27.08.2019 •
Chemistry
Which of these is not a factor influencing the rate of a chemical reaction?
a.
the concentration of reactants
b.
the surface area of reactants
c.
the presence of a catalyst
d.
the volume of the container in which the reaction occurs
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Ответ:
Ответ:
Option (D) is the correct answer.
Explanation:
When we increase the concentration of reactants then it means more number of molecules are available for reaction. Hence, there will be more number of collisions between the reactant molecules.
As a result, rate of reaction will increase.
Also, when more is the surface area of reactants then more number of particles are available for reaction. Thus, rate of reaction will increase then.
But when less number of surface area of reactants is available then less number of molecules come in contact. Hence, rate of reaction will decrease then.
Presence of catalyst will also help in increasing the rate of a reaction because catalyst will lower the activation energy. Hence, more number of molecules are able to participate in the reaction. Thus, rate of reaction will increase.
Volume of the container will not affect the rate of a reaction as it is not able to influence the reactants or reaction in any way.
Thus, we can conclude that out of the given options, the volume of the container in which the reaction occurs is not a factor influencing the rate of a chemical reaction.
Ответ:
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